On October 7, 2023, Hamas and several other Palestinian militant groups launched coordinated armed incursions from the Gaza Strip into the Gaza envelope of southern Israel, the first invasion of Israeli territory since the 1948 Arab–Israeli War. The attacks, which coincided with the Jewish religious holiday Simchat Torah, initiated the ongoing Gaza war.
The attacks began with a barrage of at least 4,300 rockets launched into Israel[28][29][30] and vehicle-transported and powered paraglider incursions into Israel.[31][32] Hamas militants breached the Gaza–Israel barrier, attacking military bases and massacring civilians in 21 communities, including Be'eri, Kfar Aza, Nir Oz, Netiv Haasara, and Alumim. According to an IDF report that revised the estimate on the number of attackers, 6,000 Gazans breached the border in 119 locations into Israel, including 3,800 from the elite "Nukhba forces" and 2,200 civilians and other militants.[33][28][29] Additionally, the IDF report estimated 1,000 Gazans fired rockets from the Gaza Strip, bringing the total number of participants on Hamas's side to 7,000.[33][28][29]
Byman, Daniel; Duff, Delaney (December 18, 2023). "What Has Hamas Accomplished?". Foreign Policy. Retrieved January 5, 2025. On Oct. 7, Hamas militants surprised Israel and slaughtered 1,200 people while taking more than 200 as prisoners. It was an impressive tactical success for the group.
Sachs, Natan (October 7, 2023). "This Will Be a Pyrrhic Victory for Hamas". The Atlantic. Retrieved January 5, 2025. But this Hamas victory might prove Pyrrhic. In fact, Hamas itself might have been surprised by the extent of its initial success. The trauma in Israel today should give pause to those thinking that Israel will simply acquiesce to a short tit for tat.
Gat, Azar (2024). Strategic Surprise—Always? (Report). Institute for National Security Studies. Hamas's successful surprise attack on October 7, 2023, exactly 50 years after October 6, 1973, in the Yom Kippur War, has once again raised the question, in all seriousness, of why and how strategic surprises occur.
"Michael Handel, October 7, and The Theory of Surprise". Military Strategy Magazine. Retrieved March 21, 2025. ... the Israeli government and scholarly community are more than capable of identifying the errors of omission and commission that contributed to the operational and tactical success enjoyed by Hamas during the October 7 raid that killed about 1200 Israeli civilians and soldiers and enabled the taking of over 250 hostages.
Morel, Thomas (October 6, 2024). "The October 7 Attack: An Assessment of the Intelligence Failings". Combating Terrorism Center at West Point. Retrieved March 21, 2025. Second, the Hamas attack on October 7 once again demonstrated how a determined non-state armed group can successfully confront a much stronger adversary, precisely because it is—and rightly so, according to objective criteria—considered to be an order of magnitude weaker.
Isaacson, Gila (February 27, 2025). "How Hamas outmaneuvered Israel: A detailed analysis of the October 7 def". JFeed. Retrieved March 21, 2025. On October 7, 2023, Hamas executed a devastating surprise attack that overwhelmed Israel's defenses, killed over 1,200 people, abducted 251, and shattered the nation's security assumptions in mere hours. This defeat—described by the Israeli military as a collapse of the Gaza Division—was not simply a tactical triumph but a strategic masterstroke enabled by profound Israeli intelligence and operational failures. A recent IDF investigation lays bare the systemic weaknesses that Hamas exploited.
Philpott, Limor Simhony (November 22, 2023). "Why Hamas has agreed to a ceasefire deal". The Spectator. Retrieved March 21, 2025. Despite launching a successful surprise attack on 7 October, Hamas's capabilities are no match for the IDF.
Brennan, David (October 9, 2023). "Is Russia behind Hamas attack on Israel? What we know". Newsweek. Retrieved March 21, 2025. The stunningly successful surprise attack launched by Hamas from the Gaza Strip into southern Israel at the weekend has opened a dark new chapter in the years-long war between the Islamist militant group and its Israeli enemies.
Morris, Loveday; Suliman, Adela (July 11, 2024). "Israeli military says it failed to protect Gaza border town on Oct. 7". The Washington Post. ISSN0190-8286. Archived from the original on July 11, 2024. Retrieved July 16, 2024. The Israeli military on Thursday released the results of its first internal probe into the Hamas attacks on Oct. 7, admitting to major failings in the defense of Kibbutz Beeri, a hard-hit town on the Gaza border ... Those questions include why military forces gathered at the gate of the kibbutz for hours without entering, the root causes of the intelligence failure that permitted Hamas's invasion and whether the soldiers who arrived understood that their primary objective was to protect civilians.
^"Israel's Dead: The Names of Those Killed in Hamas Attacks, Massacres and the Israel-Hamas War". Haaretz. July 25, 2024. Archived from the original on August 3, 2024. Retrieved August 4, 2024. Approximately 1,200 Israelis, civilians and soldiers were killed in their homes, communities and in confronting Hamas terrorists. Here are the officially confirmed names of Israel's dead in the atrocities of October 7 and the subsequent Israel-Hamas war ... This list of 1618 names will be continuously updated with names that have been cleared for publication.
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^Gettleman, Sella & Schwartz 2023: "Meni Binyamin, the head of the International Crime Investigations Unit of the Israeli police, has said that "dozens" of women and some men were raped by Hamas militants on Oct. 7."
^Michaelson, Ruth (October 7, 2023). "Condemnation and calls for restraint after Hamas attack on Israel". The Guardian. ISSN0261-3077. Archived from the original on October 7, 2023. Retrieved October 7, 2023. International leaders condemned an unprecedented incursion by Palestinian militants into southern Israel, while governments across the Middle East called for restraint after an attack that shook the Israeli security establishment. [...] The US defence secretary, Lloyd Austin, said his organisation would send support to Israel. 'Over the coming days the Department of Defense will work to ensure that Israel has what it needs to defend itself and protect civilians from indiscriminate violence and terrorism,' he said.
^"Hamas's attack was the bloodiest in Israel's history". The Economist. October 12, 2023. ISSN0013-0613. Archived from the original on October 14, 2023. Retrieved October 15, 2023. The most searing historical comparison predates Israel's founding. Not all of Hamas's victims were Israeli, and not all of the Israeli dead were Jewish. But under reasonable assumptions about the ethnic make-up of those killed in this and previous attacks, the last time before October 7th that this many Jews were murdered on a single day was during the Holocaust.
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